I agree, I hate the update reminder.
Please show it once the first time there's a new update and then if I decide to not update stop nagging me. Or put an option in the settings to enable/disable it, whatever. Just stop bugging me with an upgrade that I don't want to do.
Even better you could provide us with upgrades that always work perfectly without adding new bugs, so we'll be very happy to upgrade to any new version immediately...just kidding, just remove the nagging upgrade window.